Journal of nuclear medicine : official publication, Society of Nuclear Medicine
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Comparative Study
Peak rate of left-ventricular ejection by a gated radionuclide technique: correlation with contrast angiography.
Gated radionuclide cardiac blood-pool imaging can produce reliable estimates of left-ventricular (LV) volume and ejection fraction. The ventricular volume curve can be used to develop normalized ejection rates, since count volumes and framing times are known. ⋯ The mean intraobserver variation was (plus or minus 12%) and the mean interobserver variation plus or minus 0.33 end-diastolic volumes per sec (plus or minus 13%). We conclude that maximum dv/dt may be derived from gated blood images, with reasonable accuracy and modest variability.